How to request for a firmware:Submit the following files (using adb pull):/system/default.prop/system/build.propMSU.txt of Motorola Software Update (You only need the version of Flex)Configuration > About phone > Webtop versionNOTE: I only MIGHT find that firmware or newer version of it.

Visit DRDevs.com hosting site for all official Droidrzr.com ROMs, Apps, GApps and other mods/files!!Please PM me if you need help!I will be hosting AOSP-Based ROM GApps packages! Download the most Up-to-Date GApps Packages for AOSP ROMs from me here!

It's a post from a redundant thread another user made which was merged into yours. Ignore

Visit DRDevs.com hosting site for all official Droidrzr.com ROMs, Apps, GApps and other mods/files!!Please PM me if you need help!I will be hosting AOSP-Based ROM GApps packages! Download the most Up-to-Date GApps Packages for AOSP ROMs from me here!

) friends... It has all firmware links incl latest 4.4.2.. My friend has soft-bricked his RazrMAXX_HD.. Phone bootloops, but can reach bootloader mode.. He was earlier in 4.1.2 with bl hack patched firmware... He doesn't need root..

Now my question is, to un-brick that phone, can I just download the 741+MB 4.4.2 and flash it via RSDLite? Or any other precautions has to be taken?

Ah, well, you are correct with the getvar lines. The easier thing to do it to use SamuriHL's RSD Flasher to take care of this. It will take care of that for you. As for debugging, no, that has no bearing on fastboot mode, which is where you flash fxz's.